scholarly journals Exact Critical Exponents for the Antiferromagnetic Quantum Critical Metal in Two Dimensions

2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Andres Schlief ◽  
Peter Lunts ◽  
Sung-Sik Lee
Keyword(s):  
Critical Exponents ◽  
Two Dimensions ◽  
Critical Metal ◽  
Quantum Critical

scholarly journals Quantum critical exponents for a disordered three-dimensional Weyl node

2015 ◽  
Vol 92 (11) ◽  
Author(s):  
Björn Sbierski ◽  
Emil J. Bergholtz ◽  
Piet W. Brouwer
Keyword(s):  
Critical Exponents ◽  
Three Dimensional ◽  
Quantum Critical

scholarly journals Transport near the Ising-nematic quantum critical point of metals in two dimensions

2014 ◽  
Vol 89 (15) ◽  
Author(s):  
Sean A. Hartnoll ◽  
Raghu Mahajan ◽  
Matthias Punk ◽  
Subir Sachdev
Keyword(s):  
Critical Point ◽  
Quantum Critical Point ◽  
Two Dimensions ◽  
Quantum Critical

Quantum Critical Phenomena in the Ni S2−xSex System

2000 ◽  
Vol 658 ◽  
Author(s):  
J.M. Honig
Keyword(s):  
Electrical Conductivity ◽  
Critical Point ◽  
Critical Phenomena ◽  
Critical Exponents ◽  
Moderate Pressure ◽  
Correlation Effects ◽  
Detailed Data ◽  
Quantum Critical Phenomena ◽  
Quantum Critical

ABSTRACTElectrical conductivity experiments on NiS2−xSex (x = 0.45) subjected to moderate pressure in the 30 – 800 mK range permit the investigation of quantum critical phenomena in this system. Detailed data are presented in the context of standard theories of correlation effects in the vicinity of a critical point. The critical exponents pertaining to these effects have been evaluated; the significance of these findings require further study.

Majority-vote model on directed Small-World-Voronoi–Delaunay random lattices

2018 ◽  
Vol 29 (07) ◽  
pp. 1850061
Author(s):  
R. S. C. Brenda ◽  
F. W. S. Lima
Keyword(s):  
Critical Exponents ◽  
Majority Vote ◽  
Small World ◽  
Universality Class ◽  
Two Dimensions ◽  
Critical Properties ◽  
Disordered System ◽  
Vote Model ◽  
Random Lattices ◽  
Second Order Phase Transition

We investigate the critical properties of the nonequilibrium majority-vote model in two-dimensions on directed small-world lattice with quenched connectivity disorder. The disordered system is studied through Monte Carlo simulations: the critical noise ([Formula: see text]), as well as the critical exponents [Formula: see text], [Formula: see text], and [Formula: see text] for several values of the rewiring probability [Formula: see text]. We find that this disordered system does not belong to the same universality class as the regular two-dimensional ferromagnetic model. The majority-vote model on directed small-world lattices presents in fact a second-order phase transition with new critical exponents which do not depend on [Formula: see text] ([Formula: see text]), but agree with the exponents of the equilibrium Ising model on directed small-world Voronoi–Delaunay random lattices.

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